On the conditions for valid objective functions in blind separation of independent and dependent sources

Abstract

It is well known that independent sources can be blindly detected and separated, one by one, from linear mixtures by identifying local extrema of certain objective functions (contrasts), like negentropy, non-Gaussianity (NG) measures, kurtosis, etc. It was also suggested by Donoho in 1981, and verified in practice by Caiafa et al., that some of these… (More)
DOI: 10.1186/1687-6180-2012-255

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